Part Number
Part Number:
NSN:
NIIN:
Item Name:
BOLT , INTERNAL WRENCHING
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO. 10 (0.190 IN.) (5 MM) OR LARGER. IT IS DESIGNED WITH AN INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE FOR USE WITH AN INTERNAL DRIVER. THE HEAD IS BEVELED (CONICAL) OR CYLINDRICAL IN SHAPE. ITEMS WITH CYLINDRICAL SHAPED HEADS MUST HAVE AN EXTERNALLY RELIEVED BODY. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. SEE ALSO SCREW, CAP, SOCKET HEAD. EXCLUDES SETSCREW; SCREW, SHOULDER; BOLT, SHOULDER; SCREW, EXTERNALLY RELIEVED BODY; BOLT, EXTERNALLY RELIEVED BODY; AND SCREW, MACHINE.
CAGE Information
Code | Company |
---|---|
81348 | FEDERAL SPECIFICATIONS PROMULGATED B |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC | Requirements Statement | Clear Text Reply |
---|---|---|
CSYM | SURFACE FINISH | 32.0 MICROINCHES THREADS |
CSYM | SURFACE FINISH | 32.0 MICROINCHES THREADS |
SFTT | SURFACE TREATMENT | ZINC OVERALL |
ASDB | WIDTH ACROSS FLATS | 0.312 INCHES NOMINAL |
AAJD | THREAD CLASS | 3A |
AASA | THREAD LENGTH | 1.500 INCHES MINIMUM AND 1.810 INCHES MAXIMUM |
AAJF | THREAD DIRECTION | RIGHT-HAND |
ZZZT | NONDEFINITIVE SPEC/STD DATA | 1 TYPE |
AASU | HEAD HEIGHT | 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
AASL | HEAD DIAMETER | 0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
MATT | MATERIAL | STEEL OVERALL |
CMLP | THREAD QUANTITY PER INCH | 16 |
THSD | THREAD SERIES DESIGNATOR | UNC |
CQBC | MINIMUM TENSILE STRENGTH | 170000 POUNDS PER SQUARE INCH |
ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
CQFM | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 45.0 ROCKWELL C MAXIMUM OVERALL |
AHYM | NOMINAL THREAD DIAMETER | 0.375 INCHES |
AASB | FASTENER LENGTH | 2.000 INCHES NOMINAL |
CQHQ | MINIMUM YIELD STRENGTH | 150000 POUNDS PER SQUARE INCH |